*{
    margin: 0px;
    padding: 0px;
}

.both{
    position:relative;
}
/* 导航  start */
.search{
    width: 100%;
    height: 100px;
    background-image: url("../../images/class/1.png")
}
.common{
    width:1200px;
    /* height: 100px; */
    margin: 0px auto;
}
/* 导航  end */



/* 班徽   start */
.logo{
    width:100%;
    height:550px;
    margin-top: 20px;
    /* background-color: #EBEBEB; */
}
.common{
    width: 1200px;
    margin: 0px auto;
    overflow: hidden;
}
.logo_span{
    margin: 0px auto;
    width: 90px;
    height: 32px;
    text-align: center;
    line-height: 32px;;
    background: #2D5187;
    color: #fff;
    margin-top: 20px;
    font-size: 18px;
}
.logo_img{
    width:100px;
    height:100%;
    margin: 0px auto;
    margin-top: 20px;
}
.logo_img1{
    width: 140px;
    height: 137px;
    margin-left: -21px;
}
.logo_img2{
    width: 422px;
    height: 95px;
    margin: 0px auto;
    margin-left: -134px;
}

/* 班徽    end */